IRONMAN São Paulo
IRONMAN 70.3 São Paulo on 20 September 2026 puts a half-distance race inside the largest city in South America: a 1.9 km reservoir swim, 90 km on closed roads and a 21.1 km run.
The reservoir swim is the thing to research before you enter. It is calm, flat water with no surf and no current, which is easy, and it is city water, which means reading the organiser's water-quality information in the weeks before rather than after.
The bike uses closed urban motorway. That gives you a smooth, entirely flat 90 km with none of the traffic furniture that normally breaks up a city course, and no shelter from wind or sun either.
September is late winter here, which in São Paulo means mild and often grey rather than cold. The city sits at around 750 metres, enough to notice in the first minutes of the swim and not enough to change your plan.
Who it's for
Built for experienced triathlon athletes.
Good fit if you…
- are experienced in triathlon and want a hard race
- want a well-known, high-status race
Maybe not if you…
- are brand-new to triathlon: start with something shorter
What should you know about IRONMAN São Paulo?
- Date
- Sunday, 20 September 2026
- Format
- Half / 70.3
- Water temp
- 21°C · 70°F
Need to know
When is IRONMAN São Paulo 2026?
IRONMAN São Paulo takes place on Sunday, 20 September 2026. Dates can move year to year, so confirm the exact day on the official race page before you book travel.
How do you register for IRONMAN São Paulo?
Where does IRONMAN São Paulo take place?
Sao Paulo, Brazil
FAQs
What do athletes ask about IRONMAN São Paulo?
Where is IRONMAN São Paulo held?
IRONMAN São Paulo is held in Sao Paulo, Brazil. The race page has the venue location and a map, and links straight through to the official site for the precise start area.
What distances can you race at IRONMAN São Paulo?
IRONMAN São Paulo offers Half / 70.3. The Half / 70.3 is a 1.9 km swim, 90 km bike and 21.1 km run. Pick your distance and enter on the official site. Each format usually has its own start wave and cut-offs.
What's the water temperature at IRONMAN São Paulo?
The swim at IRONMAN São Paulo is around 21°C (70°F), based on the official average for the venue. Water temperature drives wetsuit rules, so check the organiser's current wetsuit policy before race day.
How do I enter IRONMAN São Paulo?
You enter IRONMAN São Paulo through the official organiser. Registration is handled on their site, and FindMyNextRace links you straight there. Places for popular editions can sell out early, so register as soon as entry opens.
Is IRONMAN São Paulo part of a race series?
Yes, IRONMAN São Paulo is part of the IRONMAN series. Series events often share a qualification, points, or championship pathway, so if you're chasing the series, check how this race fits its calendar.
How should I train for IRONMAN São Paulo?
Training for IRONMAN São Paulo depends on your target distance and current fitness. Most athletes follow a structured block of 12–20 weeks for a Half / 70.3 effort. Build a plan tailored to your race date and level with AI Training Plan (https://aitrainingplan.app).
How hard is IRONMAN São Paulo?
IRONMAN São Paulo is rated competitive (4/5) for difficulty on FindMyNextRace, based on its distance, terrain, and the level of the field. Use that as a guide and match it to your current fitness before you commit.
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